Development of conducting polychloroprene rubber using imidazolium based ionic liquid modified multi-walled carbon nanotubes

Kalaivani Subramaniam, Amit Das, Gert Heinrich

    Research output: Contribution to journalArticleScientificpeer-review

    117 Citations (Scopus)

    Abstract

    A simplified and an eco-friendly approach to develop polychloroprene rubber composites with high electrical conductivity is reported. The usage of room temperature ionic liquid, 1-butyl 3-methyl imidazolium bis(trifluoromethylsulphonyl)imide and a low concentration (5. phr) of commercial grade multi-walled carbon nanotubes (MWCNTs) in polychloroprene rubber exhibited an electrical conductivity of 0.1. S/cm with a stretchability >500%. The physical (cation-pi/pi-pi) interaction between the ionic liquid and the MWCNTs is evidenced by Raman spectroscopy. Transmission electron microscopy images exhibit an improved dispersion of the BMI modified tubes in matrix at various magnification scales. The dependency of dynamic properties on the concentration of ionic liquid at constant loading of nanotubes supports the fact that ionic liquid assists in the formation of filler-filler networks. The tensile modulus of 3. phr loaded modified MWCNT/CR composite is increased by 50% with regard to that of the unmodified MWCNT/CR composite. Mooney-Rivlin plot displays the existence of rubber-filler interactions.

    Original languageEnglish
    Pages (from-to)1441-1449
    Number of pages9
    JournalComposites Science and Technology
    Volume71
    Issue number11
    DOIs
    Publication statusPublished - 28 Jul 2011
    Publication typeA1 Journal article-refereed

    Keywords

    • A. Carbon nanotubes
    • A. Nanocomposites
    • B. Electrical properties
    • B. Mechanical properties
    • Ionic liquids

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Engineering(all)

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